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CVE-2026-80755: Linux

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Вероятност да бъде експлоатирана в следващите 30 дни (EPSS)

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    Описание

    Оригинално описание

    In the Linux kernel, the following vulnerability has been resolved: selinux: reject a permission value exceeding the class permission count perm_read() bounds a permission value by SEL_VEC_MAX but never by the nprim of the owning class or common, which is taken verbatim from the policy image. security_get_permissions() then writes perms[value - 1] into an nprim-sized kcalloc() array, so a class declaring fewer permissions than its largest permission value drives an out-of-bounds heap write. The top-level symbol tables are validated this way; the nested per-class permission table is not. Reject a permission whose value exceeds nprim, which is already set when perm_read() runs. Well-formed policies are unaffected. [PM: tweak comment for line length]

    Засегнати продукти

    • Linux Linux: 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 766051751cfb90fc9c29c30c2943b0f24eda9594; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 9a1bd9fd1326655dfc31b18ca92ea8433cb31204; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди 6c2ab7c4549f4f2305848df834e784651dbf1676; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди dfc59a062c386d3d4415ecdab781065a645f33cc; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди a7f3d4f22d920dc3c7d75f02ece0f7bf2c58437e; 55fcf09b3fe4325c9395ebbb0322a547a157ebc7 преди d14b5d0e97fccd27974fedc03b903408872907fd
    • Linux Linux: 2.6.23; преди 2.6.23; 6.1.191 до 6.1.*; 6.6.160 до 6.6.*; 6.12.108 до 6.12.*; 6.18.49 до 6.18.*; 7.1.13 до 7.1.*; 7.2 до *

    История

    • 3 септември 2026 Публикувано

    Други уязвимости в Linux Linux

    Първоизточници

    CVE-2026-80755: Linux | freedomonline.bg